Ni'ihau is off limits to which group of individuals?

Ni'ihau is indeed off-limits to the general public, which includes tourists and anyone without specific permission to enter the island. The island is privately owned, and access is typically restricted to the owners' relatives and certain individuals, such as U.S. Navy personnel, who may have a legitimate reason for being there. This exclusivity is rooted in the desire of the island’s owners to preserve the culture and environment of Ni'ihau, making it a unique and protected place in Hawaii. Visitors must usually have special permission, which is not something that is provided to just anyone; hence, not being accessible to the general public reinforces the protected status of the island.